Reconcile the code to display attachment previews into a FileAttachmentList class to clean up duplicated code.

web/react/components/file_attachment_list.jsx

@@ -0,0 +1,47 @@
+// Copyright (c) 2015 Spinpunch, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+var ViewImageModal = require('./view_image.jsx');
+var FileAttachment = require('./file_attachment.jsx');
+var Constants = require('../utils/constants.jsx');
+
+module.exports = React.createClass({
+    displayName: "FileAttachmentList",
+    propTypes: {
+        filenames: React.PropTypes.arrayOf(React.PropTypes.string).isRequired,
+        postId: React.PropTypes.string.isRequired,
+        channelId: React.PropTypes.string,
+        userId: React.PropTypes.string
+    },
+    getInitialState: function() {
+        return {startImgId: 0};
+    },
+    render: function() {
+        var filenames = this.props.filenames;
+
+        var postImageModalId = "view_image_modal_" + this.props.postId;
+
+        var postFiles = [];
+        for (var i = 0; i < filenames.length && i < Constants.MAX_DISPLAY_FILES; i++) {
+            postFiles.push(<FileAttachment key={i} filenames={filenames} index={i} imageModalId={postImageModalId} handleImageClick={this.handleImageClick} />);
+        }
+
+        return (
+            <div>
+                <div className="post-image__columns">
+                    {postFiles}
+                </div>
+                <ViewImageModal
+                    channelId={this.props.channelId}
+                    userId={this.props.userId}
+                    modalId={postImageModalId}
+                    startId={this.state.startImgId}
+                    imgCount={0}
+                    filenames={filenames} />
+            </div>
+        );
+    },
+    handleImageClick: function(e) {
+        this.setState({startImgId: parseInt($(e.target.parentNode).attr('data-img-id'))});
+    }
+});